42889250517 has 32 divisors (see below), whose sum is σ = 59487177600. Its totient is φ = 27453474048.

The previous prime is 42889250477. The next prime is 42889250543. The reversal of 42889250517 is 71505298824.

It is not a de Polignac number, because 42889250517 - 2⁷ = 42889250389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42889250517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42889250557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15842478 + ... + 15845184.

It is an arithmetic number, because the mean of its divisors is an integer number (1858974300).

Almost surely, 2^42889250517 is an apocalyptic number.

It is an amenable number.

42889250517 is a deficient number, since it is larger than the sum of its proper divisors (16597927083).

42889250517 is a wasteful number, since it uses less digits than its factorization.

42889250517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 42889250517 in words is "forty-two billion, eight hundred eighty-nine million, two hundred fifty thousand, five hundred seventeen".